Multi-domain network and method for multi-domain network

Inactive Publication Date: 2010-03-11
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0039]According to a third aspect of the present invention there is provided an apparatus for use in a domain of a multi-domain network, the apparatus being provided by one or more nodes of that domain and comprising means for: collecting intra-domain routing information relating to that domain, making a reduced view of that information available to other domains of the network, and forming a logical view of the network using the collected intra-domain routing information together with reduced-view routing information from the other domains so as to enable an end-to-end route selection decision to be made based on the logical view.

Problems solved by technology

However, the above new network structure causes some new problems and issues in the area of routing and resource allocation.

Method used

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  • Multi-domain network and method for multi-domain network

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Embodiment Construction

[0053]An embodiment of the present invention concerns multi-domain networks, described briefly above, that have a flat connection structure, and in which different operators on the same level will connect to each other's network and offer transport services with different Quality of Service (QoS) guarantees. An integrated route management / traffic engineering solution is proposed (route selection with resilience) for guaranteeing the effective inter-working of the providers in order to provide end-to-end QoS. Before a detailed description of a network embodying the present invention, an analysis of the current technologies will be provided, since at least part of the invention lies in a clear appreciation of the prior art and the problems associated therewith. Differences between the prior art and embodiments of the present invention are highlighted.

[0054]Today, the most widespread intra-domain routing protocol is the Open Shortest Path First (OSPF) protocol, while the Border Gateway...

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Abstract

Each domain of a multi-domain network collects intra-domain routing information relating to that domain and makes a reduced view of that information available to other domains of the network, and in which each domain of the network uses its own intra-domain routing information together with the reduced-view routing information from the other domains to form a logical view of the network so as to enable that domain to make an end-to-end route selection decision.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a multi-domain network and a method for use in a multi-domain network.[0003]2. Description of the Related Art[0004]In a multi-domain network there is provided a multi-connected network of different Autonomous Systems (AS). In a multi-provider environment, each AS or groups of aSs belong to different, independent network providers.[0005]Such types of network do not exist at present to any large extent, owing in large part to the ubiquitous hierarchical structure of the current Internet. However, in the near future, multi-domain network with a flat connection structure will come to the fore in telecommunications. With such a structure, different operators on the same level will connect to each other's network and offer transport services with different Quality of Service (QoS) guarantees.[0006]However, the above new network structure causes some new problems and issues in the area of routi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L12/56H04L12/26H04L12/54
CPCH04L45/025H04L45/04H04L45/124H04L45/22H04L45/28H04L45/302H04L45/46H04L47/70H04L45/03H04L45/02
Inventor HARMATOS, JANOSGODOR, ISTVANJUTTNER, ALPAR
Owner TELEFON AB LM ERICSSON (PUBL)
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